Goroutine Counter

Goroutine Counter

Build a thread-safe counter that can be safely incremented from multiple goroutines.

Background

When multiple goroutines access shared state concurrently, you need synchronization to prevent race conditions. In this exercise, you’ll build a counter that uses a channel to serialize access.

Your Task

Implement a Counter struct with:

1. A method to increment the counter
2. A method to get the current value
3. Proper synchronization using channels

The counter should work correctly even when incremented from 100 concurrent goroutines.

Thread-Safe Counter

~10 mineasy

Implement a counter that can be safely used from multiple goroutines

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Key Concepts

• Channel-based synchronization: Using channels to serialize access to shared state
• Select statement: Handling multiple channel operations
• Ownership pattern: One goroutine “owns” the state and communicates via channels